John XXIII, P. (1959). The Holy Father speaks to teachers. National Catholic Welfare Conference.
Citação norma ChicagoJohn XXIII, Pope. The Holy Father Speaks to Teachers. Washington, D.C.: National Catholic Welfare Conference, 1959.
Citação norma MLAJohn XXIII, Pope. The Holy Father Speaks to Teachers. National Catholic Welfare Conference, 1959.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.